Nursing the man back to health when he had been sick had been nothing compared to this. Back then had already been quite the hard task, since Sherlock was still his usualy stubborn and pride self even with a fever and barely any voice. But that he had managed to handle. It had not been the first time he had taken care of a sick person, even if this one had been a particularly difficult one.
But seeing Sherlock so obviously miserable, not even trying to hide it or play it off or anything, that was what really worried Lestrade. He had not let himself think of the possibility, but slowly he began to wonder just how close Moriarty had come that day to breaking Sherlock. Because from what he could seen it had been pretty damned close. And Greg had no idea how to fix this kind of thing. Especially not with Sherlock.
He watched the other man with his phone and instinctively knew by the expression on his face that the text he was answering was from John. The men were so close that people thought they were a couple, which they were now, Greg was assured of that. And it seemed it told him everything he needed to know that Sherlock did not want John to know about any of this. Even though chances were high that John was probably the only person who would ever be able to hepl Sherlock recover. Because the way things were going, Greg didn't seemed to be getting anywhere. 
He nodded at the request of another blanket and headed into the living room, snatching up the blanket that lay on the couch, then went back into Sherlocks room, spreading the blanket over the one Sherlock was using. "You are cold?" he asked, wondering at the same time what else he could to, or get, to help with that.